// Custom styles.
body {
    background:url(https://source.unsplash.com/random/1600x900);
    background-repeat: no-repeat;
    background-attachment:fixed;
    background-position:50% 50%;
}
//.main-inner {
//    margin-top: 60px;
//    padding: 60px 60px 60px 60px;
//    background: #fff;
//    opacity: 0.8;
//    min-height: 500px;
//}
